Finding the Fourth Proportional to 479,533,497.30, 672,027,140.70 and 479,533,497.30
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Solution
The fourth proportional to 479,533,497.30, 672,027,140.70 and 479,533,497.30 is: 672,027,140.70
Step by Step Solution
- Step 1: Write the proportion equation
479,533,497.30 : 672,027,140.70 = 479,533,497.30 : x - Step 2: Convert to fraction form
479,533,497.30/672,027,140.70 = 479,533,497.30/x - Step 3: Cross multiply
479,533,497.30x = 672,027,140.70 × 479,533,497.30 - Step 4: Simplify right side
479,533,497.30x = 322,259,525,060,390,208 - Step 5: Solve for x
x = 322,259,525,060,390,208/479,533,497.30 - Step 6: Final answer
x = 672,027,140.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.